In the present work of investigation, the pulse cardiac is monitoring with a heart rate sensor. All data record is obtained of a healthy person group, five junior and one expert electric lineman, Pulse cardiac let show the behavior of the heart when responding to physical effort and stress situation. So that we relate the required physical effort evidenced by a calorific map, the condition of stress due to the fear of falling and the variability of the cardiac pulse. Study is presented in stages. In the first stage, it is possible to demonstrate the increase of the cardiac pulse due to the effort. In the second stage, the increase of the cardiac pulse due to a condition of stress or fear is presented. Finally, in the third stage, the cardiac pulse increases proportionally. Also the cardiac pulse is monitored when descending the concrete post. A variability of the cardiac rhythm between the participants is obtained. It checks that the heart rate after an effort or stress condition becomes unpredictable for different people.
The investigation uses a group of people: an expert and five inexperienced ones in the ascent to the posts of the electric power distribution networks that are 12 meters high. The analysis consisted in taking data related to the heartbeat given by the physical effort made to raise and lower poles, presenting a map of heat, generating a stress caused by the fear of heights and the possibility of slipping or falling from the structures that they are installing, resulting in a very unstable heart rate. The analysis considers different circumstances, such as the correlation of the increase of the heart rate with the effort made by the worker, and the heart rate that increases with the fear or stress of working at height is determined. Should be considered the cardiac pulse that the worker has when descending from the post. The heart rate is variable in all the people analyzed, after a physical effort the heart rate is unpredictable for several people.
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